public static <F> F getInstance(Class<?> objectType,
                Class<F> factory)

Returns a factory instance for one type of object. Each method in the interface defines a constructor via its parameters. Any checked exceptions declared thrown by the constructor must also be declared by the method. The method return types can be the same type as the constructed object or a supertype.

Here is a contrived example for constructing strings. In practice, such a string factory is useless, since the "new" operator can be invoked directly.

 public interface StringFactory {
     String newEmptyString();

     String newStringFromChars(char[] chars);

     String newStringFromBytes(byte[] bytes, String charsetName)
         throws UnsupportedEncodingException;
 }
 

Here's an example of it being used:

 StringFactory sf = QuickConstructorGenerator.getInstance(String.class, StringFactory.class);
 ...
 String str = sf.newStringFromChars(new char[] {'h', 'e', 'l', 'l', 'o'});